94. MANUAL OF GARDENING 
by the character of the land and the purposes for which it is 
to be fitted. Lands that are hard and cloddy may be reduced 
by the use of the disk or Acme harrows, shown in Fig. 86; but 
85. Excellent types of surface plows. 
those that are friable and mellow may not need such heavy 
and vigorous tools. On these mellower lands, the spring-tooth 
86. Disk and Acme harrows, for the first working of hard or cloddy land. 
harrow, types of which are shown in Fig. 87, may follow the 
plow. On very hard lands, these spring-tooth harrows may 
follow the disk and Acme types. The final preparation of the 
